Home / 5,440.51-8,157.79-1,691.25

Finding the Fourth Proportional to 5,440.51, 8,157.79 and 1,691.25

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Solution

The fourth proportional to 5,440.51, 8,157.79 and 1,691.25 is: 2,535.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.51 : 8,157.79 = 1,691.25 : x
  2. Step 2: Convert to fraction form
    5,440.51/8,157.79 = 1,691.25/x
  3. Step 3: Cross multiply
    5,440.51x = 8,157.79 × 1,691.25
  4. Step 4: Simplify right side
    5,440.51x = 13,796,862.34
  5. Step 5: Solve for x
    x = 13,796,862.34/5,440.51
  6. Step 6: Final answer
    x = 2,535.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.